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Elevator Lift & Grabber
| This year's game involved handling a 40" game piece over 6 feet in the air. We decided to use a two stage elevator lift because it was compact, quick, and did not require extensive programming. An effect of having an elevator lift is that it is impossible for the robot to extend out and violate the 80" cyclinder rule. The lift is powered by three motors: two Fisher Price motors and one RS550 BaneBot motor. This three motor combination allows the robot to lift the trackball over six and a half feet in three seconds. A potentiometer was added to the lift so that setpoints on the elevator lift could be programmed. The forks and the grabber of the robot both retract into the robot using a total of four pneumatic cyclinders. The grabbing mechanism on the top of the lift consists of a RS540 BaneBot motor powered wheel which spins to both capture the ball and shoot it out. The two forks on the bottom of the lift guides the ball and keeps it firmly in place while the robot is making sharp turns. |
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